Serato Crashing

This is for all my Serato Ninjas. SO i'm using Sl 1 box with 2.3.0 software and the Denon mc6000 as the midi controller. its seems to work great for a while. I went to put a different song on channel one and it froze on me. Thank god I have VDJ as a back playing from the headphone jack. I have a prom coming up and i want to stay with serato cause of sound quality. Would anybody have any clues why this is happen.

Yes i did analyze my songs which are in I tunes. but not sure if it did all songs, over 20,000 in itunes and i ran it for a day. why do you think this is happen or what should i try.

As an owner of Scratch Live with an SL-3, Itch and an MC 6000 with VDJ, I wouldn't use Serato Scratch Live with a DN-MC6000. I know there is a work-around and technically it will work. But Scratch Live with a SL-1 works best with a single mixer and two turntables or CDJ-type players.
VDJ works great with the DN-MC6000. If that's your controller, I'd stick with that.

Since you're using the SL-1, you might want to go back to SL version 2.0. Might be more stable. Also, if you're using an i-core computer, there are a host of known issues with the TTM-57 and SL-1 and i3's, 5's and 7's. Check the user forums at Serato.com.